Some superstions that might help and add flavor to your barovian gundarkite character
Barovia (Alex Miranda)
In Barovia, it is widely believed that the sighting of a raven around a building, or better yet, a raven larger than normal, is a good omen. It means the house is protected by a benevolent spirit. This has resulted in the raven being considered a loved animal, so it is not hunted for any reason. It is considered very good luck to have a raven make its nest on one’s house, or to carry a raven’s feather with oneself. Having a raven in the house as a pet is the best protection one can wish for. If a raven marks a house with its beak, it is said no evil can ever enter it again. Amulets of raven claws are an especially bad augury, since it entails the sacrificing of a raven. Killing a raven can banish all protecting spirits, and doom will surely enter the killer’s life.
Barovia, Kartakass (Marie Klein-Laplante)
The people of these domains think that a very young baby’s soul is easy prey for haunting spirits and other ghosts. To protect the young baby’s pure and fragile soul, they keep a lit candle near the crib, night and day, until the baby is at least three months old.
Barovia (Matt Doyle)
The superstitious Barovians are known for their aversion to the dark. Lesser known, however, is their love of daylight. Daytime is when Barovians feel alive, when they feel like they actually have a chance against the darkness that lurks in their hearts and just over the horizon. This is one reason the Cult of the Morninglord has gained influence, however slightly. For these reasons, it is considered bad luck to sleep late. Barovians rise with the cock’s crow in the morning and quietly go about their days until dusk. But he who sleeps even an hour past dawn is considered bewitched in some way.
the following superstitions are from the transylvanian guide to gothic earth but they fit barovia for the most part and can be used for barovia IMO
"When you leave your house in the morning, you must put your right foot outside first. To do otherwise invariably leads to trouble."
"If you have left a house, and remember something you left behind, don’t go back to get it, or it will bring you bad luck all day."
"Meeting a priest first thing in the morning means you will have a bad day."
"Crossroads are both unlucky and dangerous, being infested with spirits"
"Don’t cross the path of a priest or you will sicken."
"Evil things cast no shadows."
"Stepping on dropped bread crumbs means the family faces famine."
"The newly dead cannot be left alone lest they become inhabited by evil spirits."
"Those who are born on a Saturday, especially if they are twins, are granted the power to see ghosts and spirits."